US20130286553A1 - Limiting movement - Google Patents
Limiting movement Download PDFInfo
- Publication number
- US20130286553A1 US20130286553A1 US13/458,025 US201213458025A US2013286553A1 US 20130286553 A1 US20130286553 A1 US 20130286553A1 US 201213458025 A US201213458025 A US 201213458025A US 2013286553 A1 US2013286553 A1 US 2013286553A1
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- United States
- Prior art keywords
- compression
- tension
- abutment surface
- resisting
- resisting surface
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/4984—Retaining clearance for motion between assembled parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32549—Articulated members including limit means
Definitions
- Embodiments of the present invention relate to limiting movement, for example bending and/or twisting, of an apparatus.
- an apparatus comprising: a first portion ; a second portion, where the first portion and the second portion are configured for relative movement; a compression transmission arrangement extending between the first portion and the second portion configured to enable movement of the first portion and the second portion towards each other and configured to transmit compression forces between the first portion and the second portion to limit movement of the first portion and the second portion towards each other; and a tension transmission arrangement extending between the first portion and the second portion configured to enable movement of the first portion and the second portion away from each other and configured to transmit tension forces between the first portion and the second portion to limit movement of the first portion and the second portion away from each other.
- an apparatus comprising: a first portion; a second portion, where the first portion and the second portion are configured to move relative to one another; a first compression resisting surface; a first tension resisting surface displaced from the first compression resisting surface in first direction; a link structure configured to transmit compression forces and tension forces to the second portion and comprising a first compression abutment surface and a first tension abutment surface; wherein the first compression resisting surface, the first compression abutment surface, the first tension abutment surface and the first tension resisting surface are configured such that relative spacing between the first compression resisting surface and the first tension resisting surface and between the first compression abutment surface and the first tension abutment surface enables movement of the first portion and the second portion towards each other in the first direction to a minimum separation distance determined by abutment of the first compression resisting surface and the first compression abutment surface and enables movement of the first portion and the second portion away from each other in the first direction to a
- a method comprising: constraining flexibility of an apparatus by providing a compression transmission arrangement extending between a first portion and a second portion of the apparatus, wherein the compression transmission arrangement is configured to enable movement of the first portion and the second portion towards each other and is configured to transmit compression forces between the first portion and the second portion to limit movement of the first portion and the second portion towards each other; and constraining flexibility of an apparatus by providing a tension transmission arrangement extending between the first portion and the second portion, wherein the tension transmission arrangement is configured to enable movement of the first portion and the second portion away from each other and is configured to transmit tension forces between the first portion and the second portion to limit movement of the first portion and the second portion away from each other.
- FIGS. 1A , 1 B and 1 C illustrate one example of an apparatus that limits movement
- FIGS. 2A and 2B illustrate examples of an apparatus that limits movement using an interior situated link structure
- FIGS. 3A and 3B illustrate examples of an apparatus that limits movement using an exterior situated link structure
- FIGS. 4A , 4 B and 4 C illustrate straining of an apparatus that limits movement
- FIGS. 5A , 5 B and 5 C illustrate an example of an apparatus that uses a ribbed structure to limit movement
- FIG. 6 illustrates an example of electronic components that may be housed within the ribbed structure
- FIGS. 7A and 7B illustrate a device that comprises an exterior housing for the ribbed structure
- FIGS. 8 , 9 , 10 and 11 illustrate alternative examples of an apparatus that uses a ribbed structure and different compression and tension arrangements to limit movement.
- FIGS. 1A , 1 B and 1 C illustrate one example of an apparatus 2 that comprises a first portion 4 and a second portion 6 .
- the first portion 4 and the second portion 6 are configured for relative movement.
- the movement may be movement 3 towards each other as illustrated in FIG. 1B or movement 5 away from each other as illustrated in FIG. 1C .
- a compression transmission arrangement 8 extends between the first portion 4 and the second portion 6 . It is, in this example, configured both to enable movement of the first portion 4 and the second portion 6 towards each other and also to limit movement of the first portion 4 and the second portion 6 towards each other.
- the compression transmission arrangement 8 is configured to transmit compression forces between the first portion 4 and the second portion 8 to limit movement of the first portion 4 and the second portion 6 towards each other, such that they do not approach within a minimum value for a separation distance between the first portion 4 and the second portion 8 .
- a tension transmission arrangement 10 extends between the first portion 4 and the second portion 6 . It is, in this example, configured both to enable movement of the first portion 4 and the second portion 6 away from each other and also to limit movement of the first portion 4 and the second portion 6 away from each other.
- the compression transmission arrangement 8 is configured to transmit tension forces between the first portion 4 and the second portion 8 to limit movement of the first portion 4 and the second portion 6 away from each other, such that they do not separate by more than a maximum value for a separation distance between the first portion 4 and the second portion 8 .
- the compression transmission arrangement 8 in this example, is configured to transmit compression forces between the first portion 4 and the second portion 6 and, in this example, comprises a first compression abutment surface 42 .
- a first compression resisting surface 41 is, in this example, configured to transmit a force to the first portion 4 . It may, for example be connected or coupled to the first portion 4 . It may, for example, be fixed to the first portion 4 or an integral part of the first portion 4 .
- Relative spacing between the first compression resisting surface 41 and the first compression abutment surface 42 in this example, enables movement of the first portion 4 and the second portion 6 towards each other as is illustrated by the sequence of FIG. 1C , FIG. 1A , and FIG. 1B .
- a first gap 43 between the compression resisting surface 41 and the compression abutment surface 42 decreases in size and a second gap 33 between the tension resisting surface 31 and the tension abutment surface 32 increases is size.
- the first portion 4 and the second portion 6 move towards each other in this example until abutment of the first compression resisting surface 41 and the first compression abutment surface 42 as illustrated in FIG. 1B . Abutment of the first compression resisting surface 41 and the first compression abutment surface 42 creates a compression force.
- the compression force transmitted through the compression transmission arrangement 8 resists further movement of the first portion 4 and the second portion 6 towards each other beyond a minimum separation distance.
- the compression transmission arrangement 8 therefore should be capable of transmitting a compressive force. It may therefore comprise a structure that is stiff and strong.
- the tension transmission arrangement 10 in this example, is configured to transmit tension forces between the first portion 4 and the second portion 6 and comprises, in this example, a first tension abutment surface 32 .
- a first tension resisting surface 31 is configured, in this example, to transmit a force to the first portion 4 . It may, for example be connected or coupled to first portion 4 . It may, for example, be fixed to the first portion 4 or an integral part of the first portion 4 .
- Relative spacing between the first tension resisting surface 31 and the first tension abutment surface 32 in this example enables movement of the first portion 4 and the second portion 6 away from each other as is illustrated by the sequence of FIG. 1B , FIG. 1A , and FIG. 1C .
- the first gap 43 between the compression resisting surface 41 and the compression abutment surface 42 increases in size and the second gap 33 between the tension resisting surface 31 and the tension abutment surface 32 decreases in size.
- the first portion 4 and the second portion 6 move away from each other in this example until abutment of the first tension resisting surface 31 and the first tension abutment surface 32 as illustrated in FIG. 1C . Abutment of the first tension resisting surface 31 and the first tension abutment surface 32 creates a tension force.
- the tension force transmitted through the tension transmission arrangement 10 resists further movement of the first portion 4 and the second portion 6 away from each other beyond a maximum separation distance.
- the tension transmission arrangement 10 therefore needs to be capable of transmitting a tension force. It may therefore comprise a structure that has good tensile strength.
- the compression transmission arrangement 8 and the tension transmission arrangement 10 may, in some examples, be located on the same side 12 of an equilibrium plane of the apparatus 2 .
- Straining of the apparatus 2 so that the side 12 is lengthened generates tension on the side 12 of the equilibrium plane.
- the straining may arise from bending and/or twisting the apparatus 2 .
- the length is measured over the surface of the side 12 . This surface is flat in FIG. 4A and arcuate in FIG. 4B .
- first side 12 is shortened, as illustrated in the example of FIG. 4C , generates compression on the first side of the equilibrium plane.
- the straining may arise from bending and/or twisting the apparatus 2 .
- the length is measured over the surface of the side 12 . This surface is flat in FIG. 4A and arcuate in FIG. 4C .
- FIGS. 2A , 2 B, 3 A and 3 C illustrate another example of the apparatus 2 .
- the description of the apparatus 2 presented above in relation to FIGS. 1A , 1 B and 1 C is also applicable to FIGS. 2A , 2 B, 3 A and 3 B.
- a link structure 20 is configured to provide simultaneously the compression transmission arrangement 8 and the tension transmission arrangement 10 .
- the link structure 20 is configured, in these examples, to transmit both compression forces and tension forces (at different times) between the first portion 4 and the second portion 6 .
- the link structure 20 in these examples, provides the first compression abutment surface 42 and the first tension abutment surface 32 .
- the link structure 20 and these surfaces move relative to the first compression resisting surface 41 and the first tension resisting surface 31 as the first portion 4 and the second portion move towards and away from each other.
- the link structure 20 is configured to reciprocate relative to the first compression resisting surface 41 and the first tension resisting surface 31 when there is reciprocating movement of the second portion 6 relative to the first portion 4 .
- the relative spacing between the first compression resisting surface 41 and the first tension resisting surface 31 is fixed and the relative spacing between the first compression abutment surface 42 and the first tension abutment surface 32 is fixed.
- the first compression resisting surface 41 and the first tension resisting surface 31 oppose one another and a head 7 of the link structure 20 is positioned between them in an interior situation.
- the head 7 provides the first compression abutment surface 42 and the first tension abutment surface 32 .
- a fixed relative spacing between the first compression resisting surface 41 and the first tension resisting surface 31 is, in this example, greater than a fixed relative spacing between the first compression abutment surface 42 and the first tension abutment surface 32 .
- the link structure 20 may be connected or coupled to the second portion 6 .
- the first compression resisting surface 41 and the first tension resisting surface 31 may be connected to the first portion 4 .
- FIG. 2B illustrates an example where the link structure 20 is coupled to both the first portion 4 and the second portion 6 by respective the first compression resisting surfaces 41 and the first tension resisting surfaces 31 in the manner illustrated in FIG. 2A .
- An enclosure 1 provides a continuous structure that, in this example, defines and interconnects the first compression resisting surface 41 and the first tension resisting surface 31 .
- the enclosure has a C-like shape.
- the link structure 20 comprises a head 7 that is positioned within the enclosure 1 and connected to a connector 11 of fixed length that passes through a gap 9 in the enclosure 1 .
- the head 7 has a greater width than the gap 9 . Movement of the connector 11 of the link structure moves the head 7 of the link structure 20 .
- the link structure comprises a first head 7 that is surrounded by enclosure 1 of the first portion 4 and a second head 7 that is surrounded by an enclosure 1 of the second portion 4 where the first and second heads 7 are interconnected by a rigid connector 11 .
- the link structure may comprise a single head 7 that is surrounded by the enclosure 1 of, for example, the first portion 4 where the head 7 is fixedly connected to the second portion 6 via a rigid connector 11 .
- the first compression abutment surface 42 and the first tension abutment surface 32 oppose one another and a head 7 of the link structure 20 is positioned around them in an exterior situation.
- the head 7 provides the first compression abutment surface 42 and the first tension abutment surface 32 .
- a fixed relative spacing between the first compression resisting surface 41 and the first tension resisting surface 31 is, in this example, less than a fixed relative spacing between the first compression abutment surface 42 and the first tension abutment surface 32 .
- the link structure 20 may be connected or coupled to the second portion 4 .
- the first compression resisting surface 41 and the first tension resisting surface 31 may be connected to the first portion 4 .
- FIG. 3B illustrates an example where the link structure 20 is coupled to both the first portion 4 and the second portion 6 by respective first compression resisting surfaces 41 and the first tension resisting surfaces 31 in the manner illustrated in FIG. 3A .
- the link structure 20 comprises, in this example, a looped head 7 that encloses a projection 13 of the first portion 4 defining the first compression resisting surface 41 and the first tension resisting surface 31 .
- the head 7 of the link structure 20 provides, in this example, an enclosure 1 which provides a continuous structure that defines and interconnects the first compression abutment surface 42 and the first tension abutment surface 32 .
- the enclosure has a 0 -like shape.
- An interior surface 15 of the looped head 7 defines the first compression abutment surface 42 and the first tension abutment surface 32 .
- the link structure comprises a first looped head 7 that encloses a projection 13 of the first portion 4 and a second looped head 7 that encloses a projection 13 of the second portion 4 where the first and second looped heads 7 are interconnected by a rigid connector 11 .
- the link structure may comprise a single looped head 7 that encloses a projection 13 of, for example, the first portion 4 where the looped head 7 is fixedly connected to the second portion 6 via a rigid connector 11 .
- FIGS. 5A , 5 B and 5 C illustrate an example of an apparatus 2 .
- the apparatus 2 forms a ribbed structure 50 defining a cavity 54 using ribs 52 .
- the ribs 52 extend laterally in parallel. In this example the ribs also curve at their lateral extremities forming the cavity 54 within a cage. Gaps between the ribs 52 enable relative movement of the ribs 52 . In this example the spacing between adjacent ribs is greater than a width of a rib 52 .
- Each pair of ribs 52 are interconnected longitudinally using a link structure 20 and enclosure 1 .
- a compression transmission arrangement 8 interconnects a pair of adjacent ribs 52 longitudinally and a tension transmission arrangement 10 interconnects the same pair of ribs 52 , where the compression transmission arrangement 8 and the tension transmission arrangement 10 are provided by a link structure 20 .
- each rib 52 is associated with a pair of spaced parallel link structures 20 .
- a series of parallel ribs 52 are serially interconnected by serial pairs of link structures 20 .
- the first portion 4 of the apparatus 2 is provided by a rib 52 and the second portion 6 of the apparatus 2 is provided by an adjacent rib 52 .
- the link structure 20 is an integral part of the second portion 6 of the apparatus 2 . It has a short connector and a curved circular head 7 .
- the circular head 7 is received by a correspondingly circular enclosure 1 which is integrated with the first portion 4 of the apparatus 2 .
- the head 7 provides the first compression abutment surface 42 and the first tension abutment surface 32 and the enclosure 2 provides the first compression resisting surface 41 and the first tension resisting surface 31 .
- the extent of relative movement between the first portion 4 and the second portion 6 is determined by, for example, dimensions D 1 , D 2 , D 3 and D 4 as illustrated in FIG. 5C .
- the dimension D 1 defines a size of the gap 33 between the first tension abutment surface 32 and the first tension resisting surface 31 .
- the dimensions D 3 define a size of the gap 43 between the first compression abutment surface 42 and the first compression resisting surface 41 . These dimensions determine relative movement in the longitudinal direction and control the extent to which the longitudinal plane of the apparatus 2 may be bent up or down manually by a user.
- the dimensions D 2 and D 4 define the sizes of lateral gaps between the head 7 and enclosure 1 . These dimensions determine relative movement in the lateral direction and control the extent to which the longitudinal plane of the apparatus 2 may be twisted manually by a user.
- One or more of the dimensions D 1 to D 4 may be varied to obtain desired bending and/or twisting characteristics for the apparatus 2 .
- electronic components 60 may be housed within the cavity 54 .
- FIG. 6 illustrates an example of electronic components 50 .
- a flexible substrate 60 has three distinct areas illustrated using 62 , 64 , 68 .
- the longitudinal extremities 62 and 68 may be rigid.
- the middle area 64 may be flexible.
- a circuit board 62 is housed at one extremity.
- This circuit board may, for example, house one or more antennas, radio frequency circuitry, a camera, interface circuitry etc
- a circuit board 68 is housed at the other extremity.
- This circuit board may, for example, house one or more processors, one or more antennas, radio frequency circuitry, etc.
- a modular battery 64 occupies a central position (longitudinally). In this example it is divided into three modules 66 . Each module is inflexible, however, the modules may move relative to each other by hinging about laterally extending interfaces between the modules 66 . The modules 66 extend in parallel laterally. When the flexible substrate 60 is bent along its longitudinal axis the modules 66 move relative to one another.
- ribs 52 of the apparatus 2 may be aligned with the laterally extending interfaces between the modules 66 of the battery 64 .
- FIGS. 7A and 7B illustrate a device 70 that comprises the apparatus 2 .
- the apparatus may, for example, be the ribbed structure 50 which may comprise electronic components 50 .
- This device comprises a flexible display 72 that is presented on a font face of the device 70 as illustrated in FIG. 7A .
- FIG. 7B illustrates a rear face of the device 70 .
- the rear of the device comprises an exterior housing that has rigid portions 76 at its longitudinal extremities that correspond with the inflexible extremities of the substrate 60 and a flexible middle cover portion 74 that corresponds with the flexible middle portion (e.g. battery 64 ) of the substrate 60 .
- the whole device 70 may be bendable and/or twistable.
- FIGS. 8 , 9 , 10 and 11 illustrate alternative examples to the apparatus 2 illustrated in FIG. 5A .
- the apparatus 2 forms a ribbed structure 50 defining a cavity 54 using ribs 52 .
- These examples differ from the example of FIG. 5A and from each other in that they may use different compression transmission arrangements 8 and tension transmission arrangements 10 .
- a link structure 20 is used to provide both the compression transmission arrangements 8 and compression transmission arrangements 10 .
- This example is similar to the example illustrated in FIG. 5A except that the head 7 of the link structure 20 has a different shape. In this example, the head 7 is not curved but is rectangular.
- the enclosure 1 has a corresponding rectangular inner surface.
- the ordering of head 7 and enclosure 1 switched at a longitudinal midpoint of the ribbed structure 50 , so that the link structures 20 of the ribbed structure 50 are arranged with reflection symmetry about a lateral axis extending through the longitudinal midpoint of the ribbed structure 50 .
- the ordering of head 7 and enclosure 1 does not change, so that the link structures 20 of the ribbed structure 50 are arranged without reflection symmetry about a lateral axis extending through the longitudinal midpoint of the ribbed structure 50 .
- a link structure 20 is used to provide both the compression transmission arrangements 8 and compression transmission arrangements 10 .
- This example is different to the example illustrated in FIG. 5A in that a single link structure 20 is provided which spans all of the ribs instead of providing individual link structures 20 between ribs 52 .
- first portion 4 and the second portion 6 are at the extremities of the ribbed structure 50 . There are multiple intervening ribs 52 between first and second portions.
- the operation of the link structure is similar to that illustrated in FIGS. 3A and 3B (where one end of the link structure is connected to the first portion 4 rather than coupled to it).
- a link structure 20 is used to provide the compression transmission arrangements 8 but not the tension transmission arrangements 10 . As only compression transmission is required, the link structure does not require a head 7 that is wider than the connector.
- the tension transmission arrangement 10 is provided by a wire that has two stops 63 that are positioned a distance X apart.
- the wire runs through the first part 4 and through the second part where they have a separation Y.
- the difference X-Y determines the extent to which the apparatus 2 may be bent.
- a link structure 20 is used to provide both the compression transmission arrangement 8 and compression transmission arrangement 10 .
- This example is different to the example illustrated in FIG. 5A in that a single link structure 20 is provided which spans all of the ribs instead of providing individual link structures 20 between ribs 52 .
- first portion 4 and the second portion 6 are at the extremities of the ribbed structure 50 . There are multiple intervening ribs 52 between first and second portions.
- the link structure has a X shape (a cross bar) rather than a rectilinear shape as in FIG. 9 .
- the X shape constrains not only longitudinal movement but also lateral movement.
- the operation of the link structure is similar to that illustrated in FIGS. 3A and 3B (where one end of the link structure is coupled to the first portion rather than connected to it).
- constraining flexibility of an apparatus by providing a compression transmission arrangement extending between a first portion and a second portion of the apparatus, wherein the compression transmission arrangement is configured to enable movement of the first portion and the second portion towards each other and is configured to transmit compression forces between the first portion and the second portion to limit movement of the first portion and the second portion towards each other; and ii) constraining flexibility of an apparatus by providing a tension transmission arrangement extending between the first portion and the second portion, wherein the tension transmission arrangement is configured to enable movement of the first portion and the second portion away from each other and is configured to transmit tension forces between the first portion and the second portion to limit movement of the first portion and the second portion away from each other.
- This method may be used to protect electronic components 50 housed within the apparatus.
Abstract
Description
- Embodiments of the present invention relate to limiting movement, for example bending and/or twisting, of an apparatus.
- It would be desirable to provide an apparatus that may be bent and/or twisted without being bent and/or twisted too much.
- According to some but not necessarily all embodiments of the invention there is provided an apparatus comprising: a first portion ; a second portion, where the first portion and the second portion are configured for relative movement; a compression transmission arrangement extending between the first portion and the second portion configured to enable movement of the first portion and the second portion towards each other and configured to transmit compression forces between the first portion and the second portion to limit movement of the first portion and the second portion towards each other; and a tension transmission arrangement extending between the first portion and the second portion configured to enable movement of the first portion and the second portion away from each other and configured to transmit tension forces between the first portion and the second portion to limit movement of the first portion and the second portion away from each other.
- According to some but not necessarily all embodiments of the invention there is provided an apparatus comprising: a first portion; a second portion, where the first portion and the second portion are configured to move relative to one another; a first compression resisting surface; a first tension resisting surface displaced from the first compression resisting surface in first direction; a link structure configured to transmit compression forces and tension forces to the second portion and comprising a first compression abutment surface and a first tension abutment surface; wherein the first compression resisting surface, the first compression abutment surface, the first tension abutment surface and the first tension resisting surface are configured such that relative spacing between the first compression resisting surface and the first tension resisting surface and between the first compression abutment surface and the first tension abutment surface enables movement of the first portion and the second portion towards each other in the first direction to a minimum separation distance determined by abutment of the first compression resisting surface and the first compression abutment surface and enables movement of the first portion and the second portion away from each other in the first direction to a maximum separation distance determined by abutment of the first tension resisting surface and the first tension abutment surface.
- According to some but not necessarily all embodiments of the invention there is provided a method comprising: constraining flexibility of an apparatus by providing a compression transmission arrangement extending between a first portion and a second portion of the apparatus, wherein the compression transmission arrangement is configured to enable movement of the first portion and the second portion towards each other and is configured to transmit compression forces between the first portion and the second portion to limit movement of the first portion and the second portion towards each other; and constraining flexibility of an apparatus by providing a tension transmission arrangement extending between the first portion and the second portion, wherein the tension transmission arrangement is configured to enable movement of the first portion and the second portion away from each other and is configured to transmit tension forces between the first portion and the second portion to limit movement of the first portion and the second portion away from each other.
- For a better understanding of various examples of embodiments of the present invention reference will now be made by way of example only to the accompanying drawings in which:
-
FIGS. 1A , 1B and 1C illustrate one example of an apparatus that limits movement; -
FIGS. 2A and 2B illustrate examples of an apparatus that limits movement using an interior situated link structure; -
FIGS. 3A and 3B illustrate examples of an apparatus that limits movement using an exterior situated link structure; -
FIGS. 4A , 4B and 4C illustrate straining of an apparatus that limits movement; -
FIGS. 5A , 5B and 5C illustrate an example of an apparatus that uses a ribbed structure to limit movement; -
FIG. 6 illustrates an example of electronic components that may be housed within the ribbed structure; -
FIGS. 7A and 7B illustrate a device that comprises an exterior housing for the ribbed structure; -
FIGS. 8 , 9, 10 and 11 illustrate alternative examples of an apparatus that uses a ribbed structure and different compression and tension arrangements to limit movement. - The description describes a number of examples of an
apparatus 2. It should be understood that other examples of theapparatus 2 are possible while still falling within the scope of the claims. - The description describes a number of features or parts of an
apparatus 2. It should be understood that other examples of the features and parts are possible while still falling within the scope of the claims. The description of a part or feature in relation to one example does not necessarily imply that that feature or part is essential to either that example or all examples. The description of a part or feature in relation to one example but not another example does not necessarily imply that that feature or part is unsuitable for use in that other example. -
FIGS. 1A , 1B and 1C illustrate one example of anapparatus 2 that comprises afirst portion 4 and asecond portion 6. Thefirst portion 4 and thesecond portion 6 are configured for relative movement. The movement may bemovement 3 towards each other as illustrated inFIG. 1B ormovement 5 away from each other as illustrated inFIG. 1C . - A
compression transmission arrangement 8 extends between thefirst portion 4 and thesecond portion 6. It is, in this example, configured both to enable movement of thefirst portion 4 and thesecond portion 6 towards each other and also to limit movement of thefirst portion 4 and thesecond portion 6 towards each other. Thecompression transmission arrangement 8 is configured to transmit compression forces between thefirst portion 4 and thesecond portion 8 to limit movement of thefirst portion 4 and thesecond portion 6 towards each other, such that they do not approach within a minimum value for a separation distance between thefirst portion 4 and thesecond portion 8. - A
tension transmission arrangement 10 extends between thefirst portion 4 and thesecond portion 6. It is, in this example, configured both to enable movement of thefirst portion 4 and thesecond portion 6 away from each other and also to limit movement of thefirst portion 4 and thesecond portion 6 away from each other. Thecompression transmission arrangement 8 is configured to transmit tension forces between thefirst portion 4 and thesecond portion 8 to limit movement of thefirst portion 4 and thesecond portion 6 away from each other, such that they do not separate by more than a maximum value for a separation distance between thefirst portion 4 and thesecond portion 8. - The
compression transmission arrangement 8, in this example, is configured to transmit compression forces between thefirst portion 4 and thesecond portion 6 and, in this example, comprises a firstcompression abutment surface 42. - A first
compression resisting surface 41 is, in this example, configured to transmit a force to thefirst portion 4. It may, for example be connected or coupled to thefirst portion 4. It may, for example, be fixed to thefirst portion 4 or an integral part of thefirst portion 4. - Relative spacing between the first
compression resisting surface 41 and the firstcompression abutment surface 42, in this example, enables movement of thefirst portion 4 and thesecond portion 6 towards each other as is illustrated by the sequence ofFIG. 1C ,FIG. 1A , andFIG. 1B . - When the
first portion 4 and thesecond portion 6 move towards each other in this example, afirst gap 43 between thecompression resisting surface 41 and thecompression abutment surface 42 decreases in size and asecond gap 33 between thetension resisting surface 31 and thetension abutment surface 32 increases is size. - The
first portion 4 and thesecond portion 6 move towards each other in this example until abutment of the firstcompression resisting surface 41 and the firstcompression abutment surface 42 as illustrated inFIG. 1B . Abutment of the firstcompression resisting surface 41 and the firstcompression abutment surface 42 creates a compression force. The compression force transmitted through thecompression transmission arrangement 8 resists further movement of thefirst portion 4 and thesecond portion 6 towards each other beyond a minimum separation distance. Thecompression transmission arrangement 8 therefore should be capable of transmitting a compressive force. It may therefore comprise a structure that is stiff and strong. - The
tension transmission arrangement 10, in this example, is configured to transmit tension forces between thefirst portion 4 and thesecond portion 6 and comprises, in this example, a firsttension abutment surface 32. - A first
tension resisting surface 31 is configured, in this example, to transmit a force to thefirst portion 4. It may, for example be connected or coupled tofirst portion 4. It may, for example, be fixed to thefirst portion 4 or an integral part of thefirst portion 4. - Relative spacing between the first
tension resisting surface 31 and the firsttension abutment surface 32 in this example, enables movement of thefirst portion 4 and thesecond portion 6 away from each other as is illustrated by the sequence ofFIG. 1B ,FIG. 1A , andFIG. 1C . - When the
first portion 4 and thesecond portion 6 move away from each other in this example thefirst gap 43 between thecompression resisting surface 41 and thecompression abutment surface 42 increases in size and thesecond gap 33 between thetension resisting surface 31 and thetension abutment surface 32 decreases in size. - The
first portion 4 and thesecond portion 6 move away from each other in this example until abutment of the firsttension resisting surface 31 and the firsttension abutment surface 32 as illustrated inFIG. 1C . Abutment of the firsttension resisting surface 31 and the firsttension abutment surface 32 creates a tension force. The tension force transmitted through thetension transmission arrangement 10 resists further movement of thefirst portion 4 and thesecond portion 6 away from each other beyond a maximum separation distance. Thetension transmission arrangement 10 therefore needs to be capable of transmitting a tension force. It may therefore comprise a structure that has good tensile strength. - As illustrated in
FIGS. 4A , 4B and 4C thecompression transmission arrangement 8 and thetension transmission arrangement 10 may, in some examples, be located on thesame side 12 of an equilibrium plane of theapparatus 2. - Straining of the
apparatus 2 so that theside 12 is lengthened, as illustrated in the example ofFIG. 4B , generates tension on theside 12 of the equilibrium plane. The straining may arise from bending and/or twisting theapparatus 2. The length is measured over the surface of theside 12. This surface is flat inFIG. 4A and arcuate inFIG. 4B . - Straining of the
apparatus 2 so thatfirst side 12 is shortened, as illustrated in the example ofFIG. 4C , generates compression on the first side of the equilibrium plane. The straining may arise from bending and/or twisting theapparatus 2. The length is measured over the surface of theside 12. This surface is flat inFIG. 4A and arcuate inFIG. 4C . -
FIGS. 2A , 2B, 3A and 3C illustrate another example of theapparatus 2. The description of theapparatus 2 presented above in relation toFIGS. 1A , 1B and 1C is also applicable toFIGS. 2A , 2B, 3A and 3B. - In the examples of
FIGS. 2A , 2B, 3A and 3C alink structure 20 is configured to provide simultaneously thecompression transmission arrangement 8 and thetension transmission arrangement 10. - The
link structure 20 is configured, in these examples, to transmit both compression forces and tension forces (at different times) between thefirst portion 4 and thesecond portion 6. - The
link structure 20, in these examples, provides the firstcompression abutment surface 42 and the firsttension abutment surface 32. Thelink structure 20 and these surfaces move relative to the firstcompression resisting surface 41 and the firsttension resisting surface 31 as thefirst portion 4 and the second portion move towards and away from each other. Thelink structure 20 is configured to reciprocate relative to the firstcompression resisting surface 41 and the firsttension resisting surface 31 when there is reciprocating movement of thesecond portion 6 relative to thefirst portion 4. - In this example, the relative spacing between the first
compression resisting surface 41 and the firsttension resisting surface 31 is fixed and the relative spacing between the firstcompression abutment surface 42 and the firsttension abutment surface 32 is fixed. - In the examples illustrated in
FIGS. 2A and 2B , the firstcompression resisting surface 41 and the firsttension resisting surface 31 oppose one another and ahead 7 of thelink structure 20 is positioned between them in an interior situation. Thehead 7 provides the firstcompression abutment surface 42 and the firsttension abutment surface 32. - A fixed relative spacing between the first
compression resisting surface 41 and the firsttension resisting surface 31 is, in this example, greater than a fixed relative spacing between the firstcompression abutment surface 42 and the firsttension abutment surface 32. - In the example of
FIG. 2A , thelink structure 20 may be connected or coupled to thesecond portion 6. The firstcompression resisting surface 41 and the firsttension resisting surface 31 may be connected to thefirst portion 4. -
FIG. 2B illustrates an example where thelink structure 20 is coupled to both thefirst portion 4 and thesecond portion 6 by respective the firstcompression resisting surfaces 41 and the firsttension resisting surfaces 31 in the manner illustrated inFIG. 2A . - An
enclosure 1 provides a continuous structure that, in this example, defines and interconnects the firstcompression resisting surface 41 and the firsttension resisting surface 31. In this example the enclosure has a C-like shape. Thelink structure 20 comprises ahead 7 that is positioned within theenclosure 1 and connected to a connector 11 of fixed length that passes through a gap 9 in theenclosure 1. Thehead 7 has a greater width than the gap 9. Movement of the connector 11 of the link structure moves thehead 7 of thelink structure 20. - In this example, the link structure comprises a
first head 7 that is surrounded byenclosure 1 of thefirst portion 4 and asecond head 7 that is surrounded by anenclosure 1 of thesecond portion 4 where the first andsecond heads 7 are interconnected by a rigid connector 11. - However, in other examples, the link structure may comprise a
single head 7 that is surrounded by theenclosure 1 of, for example, thefirst portion 4 where thehead 7 is fixedly connected to thesecond portion 6 via a rigid connector 11. - In the examples illustrated in
FIGS. 3A and 3B , the firstcompression abutment surface 42 and the firsttension abutment surface 32 oppose one another and ahead 7 of thelink structure 20 is positioned around them in an exterior situation. Thehead 7 provides the firstcompression abutment surface 42 and the firsttension abutment surface 32. - A fixed relative spacing between the first
compression resisting surface 41 and the firsttension resisting surface 31 is, in this example, less than a fixed relative spacing between the firstcompression abutment surface 42 and the firsttension abutment surface 32. - In the example of
FIG. 2A , thelink structure 20 may be connected or coupled to thesecond portion 4. The firstcompression resisting surface 41 and the firsttension resisting surface 31 may be connected to thefirst portion 4. -
FIG. 3B illustrates an example where thelink structure 20 is coupled to both thefirst portion 4 and thesecond portion 6 by respective firstcompression resisting surfaces 41 and the firsttension resisting surfaces 31 in the manner illustrated inFIG. 3A . - The
link structure 20 comprises, in this example, a loopedhead 7 that encloses aprojection 13 of thefirst portion 4 defining the firstcompression resisting surface 41 and the firsttension resisting surface 31. - The
head 7 of thelink structure 20 provides, in this example, anenclosure 1 which provides a continuous structure that defines and interconnects the firstcompression abutment surface 42 and the firsttension abutment surface 32. In this example the enclosure has a 0-like shape. Aninterior surface 15 of the loopedhead 7 defines the firstcompression abutment surface 42 and the firsttension abutment surface 32. - In this example, the link structure comprises a first looped
head 7 that encloses aprojection 13 of thefirst portion 4 and a second loopedhead 7 that encloses aprojection 13 of thesecond portion 4 where the first and second loopedheads 7 are interconnected by a rigid connector 11. - However, in other examples, the link structure may comprise a single looped
head 7 that encloses aprojection 13 of, for example, thefirst portion 4 where the loopedhead 7 is fixedly connected to thesecond portion 6 via a rigid connector 11. -
FIGS. 5A , 5B and 5C illustrate an example of anapparatus 2. - In this example, the
apparatus 2 forms aribbed structure 50 defining acavity 54 usingribs 52. - The
ribs 52 extend laterally in parallel. In this example the ribs also curve at their lateral extremities forming thecavity 54 within a cage. Gaps between theribs 52 enable relative movement of theribs 52. In this example the spacing between adjacent ribs is greater than a width of arib 52. - Each pair of
ribs 52 are interconnected longitudinally using alink structure 20 andenclosure 1. - Thus a
compression transmission arrangement 8 interconnects a pair ofadjacent ribs 52 longitudinally and atension transmission arrangement 10 interconnects the same pair ofribs 52, where thecompression transmission arrangement 8 and thetension transmission arrangement 10 are provided by alink structure 20. - In this illustrated example, each
rib 52 is associated with a pair of spacedparallel link structures 20. A series ofparallel ribs 52 are serially interconnected by serial pairs oflink structures 20. - As illustrated in
FIG. 5B , thefirst portion 4 of theapparatus 2 is provided by arib 52 and thesecond portion 6 of theapparatus 2 is provided by anadjacent rib 52. - In this example, the
link structure 20 is an integral part of thesecond portion 6 of theapparatus 2. It has a short connector and a curvedcircular head 7. Thecircular head 7 is received by a correspondinglycircular enclosure 1 which is integrated with thefirst portion 4 of theapparatus 2. - In a manner similar to
FIG. 2A and 2B , thehead 7 provides the firstcompression abutment surface 42 and the firsttension abutment surface 32 and theenclosure 2 provides the firstcompression resisting surface 41 and the firsttension resisting surface 31. - The extent of relative movement between the
first portion 4 and thesecond portion 6 is determined by, for example, dimensions D1, D2, D3 and D4 as illustrated inFIG. 5C . - The dimension D1 defines a size of the
gap 33 between the firsttension abutment surface 32 and the firsttension resisting surface 31. The dimensions D3 define a size of thegap 43 between the firstcompression abutment surface 42 and the firstcompression resisting surface 41. These dimensions determine relative movement in the longitudinal direction and control the extent to which the longitudinal plane of theapparatus 2 may be bent up or down manually by a user. - The dimensions D2 and D4 define the sizes of lateral gaps between the
head 7 andenclosure 1. These dimensions determine relative movement in the lateral direction and control the extent to which the longitudinal plane of theapparatus 2 may be twisted manually by a user. - One or more of the dimensions D1 to D4 may be varied to obtain desired bending and/or twisting characteristics for the
apparatus 2. - Referring back to
FIG. 5A ,electronic components 60 may be housed within thecavity 54. -
FIG. 6 illustrates an example ofelectronic components 50. - In this example a
flexible substrate 60 has three distinct areas illustrated using 62, 64, 68. Thelongitudinal extremities middle area 64 may be flexible. - A
circuit board 62 is housed at one extremity. This circuit board may, for example, house one or more antennas, radio frequency circuitry, a camera, interface circuitry etc - A
circuit board 68 is housed at the other extremity. This circuit board may, for example, house one or more processors, one or more antennas, radio frequency circuitry, etc. - A
modular battery 64 occupies a central position (longitudinally). In this example it is divided into threemodules 66. Each module is inflexible, however, the modules may move relative to each other by hinging about laterally extending interfaces between themodules 66. Themodules 66 extend in parallel laterally. When theflexible substrate 60 is bent along its longitudinal axis themodules 66 move relative to one another. - Referring back to
FIG. 5A ,ribs 52 of theapparatus 2 may be aligned with the laterally extending interfaces between themodules 66 of thebattery 64. -
FIGS. 7A and 7B illustrate adevice 70 that comprises theapparatus 2. The apparatus may, for example, be the ribbedstructure 50 which may compriseelectronic components 50. - This device comprises a
flexible display 72 that is presented on a font face of thedevice 70 as illustrated inFIG. 7A . -
FIG. 7B illustrates a rear face of thedevice 70. The rear of the device comprises an exterior housing that hasrigid portions 76 at its longitudinal extremities that correspond with the inflexible extremities of thesubstrate 60 and a flexiblemiddle cover portion 74 that corresponds with the flexible middle portion (e.g. battery 64) of thesubstrate 60. - The
whole device 70 may be bendable and/or twistable. -
FIGS. 8 , 9, 10 and 11 illustrate alternative examples to theapparatus 2 illustrated inFIG. 5A . In these examples, as in the example ofFIG. 5A , theapparatus 2 forms aribbed structure 50 defining acavity 54 usingribs 52. These examples differ from the example ofFIG. 5A and from each other in that they may use differentcompression transmission arrangements 8 andtension transmission arrangements 10. - In
FIG. 8 , alink structure 20 is used to provide both thecompression transmission arrangements 8 andcompression transmission arrangements 10. This example is similar to the example illustrated inFIG. 5A except that thehead 7 of thelink structure 20 has a different shape. In this example, thehead 7 is not curved but is rectangular. Theenclosure 1 has a corresponding rectangular inner surface. - Also in
FIG. 5A , the ordering ofhead 7 andenclosure 1 switched at a longitudinal midpoint of the ribbedstructure 50, so that thelink structures 20 of the ribbedstructure 50 are arranged with reflection symmetry about a lateral axis extending through the longitudinal midpoint of the ribbedstructure 50. Whereas, inFIG. 8 , the ordering ofhead 7 andenclosure 1 does not change, so that thelink structures 20 of the ribbedstructure 50 are arranged without reflection symmetry about a lateral axis extending through the longitudinal midpoint of the ribbedstructure 50. - In
FIG. 9 , alink structure 20 is used to provide both thecompression transmission arrangements 8 andcompression transmission arrangements 10. This example is different to the example illustrated inFIG. 5A in that asingle link structure 20 is provided which spans all of the ribs instead of providingindividual link structures 20 betweenribs 52. - In this example, the
first portion 4 and thesecond portion 6 are at the extremities of the ribbedstructure 50. There are multiple interveningribs 52 between first and second portions. - The operation of the link structure is similar to that illustrated in
FIGS. 3A and 3B (where one end of the link structure is connected to thefirst portion 4 rather than coupled to it). - In
FIG. 10 , alink structure 20 is used to provide thecompression transmission arrangements 8 but not thetension transmission arrangements 10. As only compression transmission is required, the link structure does not require ahead 7 that is wider than the connector. - In
FIG. 10 , thetension transmission arrangement 10 is provided by a wire that has twostops 63 that are positioned a distance X apart. The wire runs through thefirst part 4 and through the second part where they have a separation Y. The difference X-Y determines the extent to which theapparatus 2 may be bent. - In
FIG. 11 , alink structure 20 is used to provide both thecompression transmission arrangement 8 andcompression transmission arrangement 10. This example is different to the example illustrated inFIG. 5A in that asingle link structure 20 is provided which spans all of the ribs instead of providingindividual link structures 20 betweenribs 52. - In this example, the
first portion 4 and thesecond portion 6 are at the extremities of the ribbedstructure 50. There are multiple interveningribs 52 between first and second portions. - In this example, the link structure has a X shape (a cross bar) rather than a rectilinear shape as in
FIG. 9 . - The X shape constrains not only longitudinal movement but also lateral movement.
- The operation of the link structure is similar to that illustrated in
FIGS. 3A and 3B (where one end of the link structure is coupled to the first portion rather than connected to it). - Referring back to
FIGS. 1A , 1B and 1C, it will from the foregoing be appreciated that these figures disclose a method comprising: - i) constraining flexibility of an apparatus by providing a compression transmission arrangement extending between a first portion and a second portion of the apparatus, wherein the compression transmission arrangement is configured to enable movement of the first portion and the second portion towards each other and is configured to transmit compression forces between the first portion and the second portion to limit movement of the first portion and the second portion towards each other; and
ii) constraining flexibility of an apparatus by providing a tension transmission arrangement extending between the first portion and the second portion, wherein the tension transmission arrangement is configured to enable movement of the first portion and the second portion away from each other and is configured to transmit tension forces between the first portion and the second portion to limit movement of the first portion and the second portion away from each other. - This method may be used to protect
electronic components 50 housed within the apparatus. - Although embodiments of the present invention have been described in the preceding paragraphs with reference to various examples, it should be appreciated that modifications to the examples given can be made without departing from the scope of the invention as claimed.
- Features described in the preceding description may be used in combinations other than the combinations explicitly described.
- Although functions have been described with reference to certain features, those functions may be performable by other features whether described or not.
- Although features have been described with reference to certain embodiments, those features may also be present in other embodiments whether described or not.
- Whilst endeavoring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.
Claims (30)
Priority Applications (5)
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PCT/IB2012/055758 WO2013160737A1 (en) | 2012-04-27 | 2012-10-19 | Apparatus and method for allowing relative movement between apparatus portions and at the same time limiting said movement |
CN201280072702.XA CN104272884B (en) | 2012-04-27 | 2012-10-19 | For allowing the relative movement between environment division and at the same time limiting the device and method of the movement |
EP12875023.9A EP2842401B1 (en) | 2012-04-27 | 2012-10-19 | Flexible electronic device and method for allowing relative movement between device portions and at the same time limiting said movement |
PH12014502390A PH12014502390A1 (en) | 2012-04-27 | 2014-10-24 | Apparatus and method for allowing relative movement between apparatus portions and at the same time limiting said movement |
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Also Published As
Publication number | Publication date |
---|---|
EP2842401A4 (en) | 2016-01-06 |
US9823696B2 (en) | 2017-11-21 |
WO2013160737A1 (en) | 2013-10-31 |
EP2842401A1 (en) | 2015-03-04 |
CN104272884A (en) | 2015-01-07 |
PH12014502390A1 (en) | 2014-12-22 |
EP2842401B1 (en) | 2019-09-18 |
CN104272884B (en) | 2018-05-29 |
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